injuries

• acute


  occur suddenly
• chronic


  occur slowly due to a period of prolonged overuse
• direct


  caused by external force

  eg. players, balls, playing surface
• indirect


  caused by un-natural muscle actions and extreme forces on joints

  eg. overstretching, sudden change in direction
• overuse


  caused by repetitive or unaccustomed use of a muscle/tendon/bone

  eg. repetition, sudden increase in training load, insufficient recovery